prof-g Comments - Answer Overflow

prof-g

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OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by Camden on 3/30/2022 in #open-brush-multiplayer-dev

OpenBrush Education

In case you didn't find it @camdenbock, here it is: https://www.youtube.com/watch?v=wFo035DyciI

1 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

transpose is equal to the inverse for "orthogonal" matrices. https://en.wikipedia.org/wiki/Orthogonal_matrix An example of a matrix which is orthogonal is a pure rotation matrix (no scale or translation).

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

I think it would be less jarring if the cracker-jacks faded out and in rather than jumping.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

Maybe also scale them up or down based on proximity to the brush pointer.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

Also makes me wonder if actually rendering the lines is too intrusive...🤔

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

I certainly like it's simplicity and it may even be a good option for Quest.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

That's pretty cool, thanks for sharing. I don't know a better to recover world position per pixel without interfering with the way everything is rendered. Totally onboard with the sphere reasoning. What do you think about having the grid lines also be in empty space (or only be)?

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

I could check out the code but it's so much easier to speculate 😛

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

Moat's visualization looks like it's a custom shader that branches from the normal code to his based on whether it's in the sphere. Or maybe an additional shader pass that bails out if it's not in the sphere.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

Hmmm, I was thinking of having grid lines drawn on the empty space, not on the object. Perhaps it's useful to both or only 1?

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

for #3, I was thinking there would be a volumetric sphere (radius can vary) around the brush hand where the lines would fade out toward the edge. So maybe a penumbra, umbra sort of thing.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

I see view manipulations changing the SceneParent transform. Is that related to the canvas? I assumed the term canvas would correspond to the "Main Canvas" object.

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

IIRC, I tried App.MainCanvas and this didn't work

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery

•Created by prof-g on 9/21/2021 in #open-brush-dev-chat

Snapping Branch

🙂 Good stuff. How does the whole ActiveCanvas thing work?

143 replies

OBOOpen Brush, Open Blocks, Icosa Gallery